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Investments - Summary of Details on Unrealized Gains and Losses Related to Equity Securities (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
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Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Equity securities |  |  |  |
Gain (Loss) on Securities [Line Items] |  |  |  |
Unrealized gains (losses) recognized during the reported period on equity securities still held at the end of the reported period | $ 5,078 | $ (1,129) | $ 8,963 | $ (831)

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